Combined refrigerator and ice-cream freezer



'n. F. HEATH. COMBINED REFRIGERATOR AND ICE CREAM FREEZER.

APPLICATION FILED SEPT- 8|1920.

Patented Nov. 8, 1921.

UNITED DELOS P. HEATH, OF DETROIT, MICHIGAN.

COMBINED REFRIGERATOR AND ICE-CREAM FREEZER.

Specification of Letters Patent.

Patented Nov. 8, 1921.

Application filed September 8, 1920. Serial No. 408,847.

To all whom it may concern:

Be it known that I, Dams P. HEATH, a citizen of the United States,residing at Detroit, in the county of I'Vayne and State of Michigan,have invented certain new and useful Improvements in CombinedRefrigerators and Ice-Cream Freezers, of which the following is adescription.

This invention relates to a combination of refrigerator and ice creamfreezer and has for its object to provide such a device with a unitarymotive power.

Another object of the invention is to modify the ordinary domesticrefrigerator so that the same may be readily used for making ice creamfrom time to time as desired and in which the ice cream freezer may beremoved when required so as to use the compartment for ordinaryrefrigerating purposes.

Another object of the invention is to provide such a device with meansfor readily disconnecting the shaft of the ice cream freezer in orderthat the latter may be removed.

With the above general objects in view and some others, which will beobvious to those skilled in the art from the description hereinafter, myinvention consists in the features, details of construction andcombinations of parts which will first be described in connection withthe accompanying drawin s and then particularly pointed out.

n the drawings:

Figure 1 is a front elevation of the assembled device;

Fig. 2 is a plan view thereof;

Fig. 3 is a horizontal section on line 33 of Fig. 1 and Fig. 4 is asectional detail.

The numeral 1 designates as a whole the ordinary domestic refrigeratoralthough the invention may be applied as well to other types ofrefrigerators. The refrigerator which is illustrated in the drawing hasthe usual number of compartments, the compare ment used for freezingpurposes being shown in detail and designated by the numeral 2.

In the compartment 2 is located the brine tan1k'3 in which is housed theexpansion coi 4.

As clearly shown in Fig. 3, the brine tank is U-shaped in cross sectionthereby providing a lateral passageway or pocket whereby the freezer orice trays may be inserted and removed. In this passageway is provided anumber of inwardly directed flanges 17 for receiv1ng ice trays hen therefrigerator is to be used for this purpose.

Suitably arranged on the top of the refrlgerator is the electric motor5, compressor 3 and condenser coil 7 The compressor is operated by motor5 through the belting 8. The valve through which the refrigerant isexpanded is positioned inside the freezing compartment as shown at 9.

A thermostatic switch 10 is placed in the motor circuit andhas for itspurpose to keep the temperature of the freezing compartment withincertain prescribed limits.

Fixed on the main shaft of the motor 5 is the beveled gear 11 which isshown in mesh with the beveled gear 12. This latter gear is secured tothe vertical shaft 13. The shaft 13 is rotatably and slidably mounted inbearing 14 and is provided at its lower end with a squared socket 15.The purpose of the socket 15 being to engage the squared end of thepaddle shaft 16 of the ordinary ice cream freezer when it is desired tooperate same;

To disconnect the vertical shaft 13 from the motor shaft and also fromthe paddle shaft 16, I provide the bell-crank 18 which is shown pivotedto the top wall of the compartment as at 19. On the end of the bellcrank opposite from the handle is a laterally projecting pin 20 whichrides in the annular groove 21 provided on the shaft 13. Pivotallyattached to a wall of the compartment is the finger 22, the purpose ofwhich is to hold the vertical shaft 13 in elevated position whendesired.

In operation, the brine tank is filled and a suitable refrigerant suchas sulfur dioxid placed in the coils. This refrigerant is compressed,cooled and expanded in the well known manner.

When it is desired to freeze ice cream, the freezer being charged withthe mixture is placed in the passageway of the brine tank. The handle ofthe bell crank 18 is then moved upwardly thereby engaging socket 15 withthe squared end of the paddle shaft and also placing gears 11 and 12 inmesh. The motor 5 is then started and the cream is frozen in a mannerthat will be readily understood.

A downward pull on the handle of the bell crank raises shaft 13 anddisengages the bevel gears and also disengages the socket 15 from thepaddle shaft 16. lhe freezer may then be removed from the compartment.

If it is now desired to manufacture ice, suitable pans, not shown, maybe filled with water and supported on the flanges 17 and the sameprocess carried out. It will, of course, be understood that, in thislatter case, the gears 11 and 12 are disconnected.

In accordance with the patent statutes, I have described what I nowbelieve to bathe best embodiment of the invention, but I do not wish tobe understood thereby as limiting myself or the scope of the invention,as many changes and modifications may be made without departing from thespirit of the invention and all such I aim to include in the scope ofthe appended claims.

What I claim as new and desire to'secure by Letters Patent is 1. Adomestic refrigerator, a plurality of refrigerating compartmentstherein, means for cooling said compartments, said means including anexpansion coil located in one of said compartments and so arranged as toprovide a pocket, an ice cream freezer located in said pocket, andunitary means for operating the cooling means and the ice cream freezen'2. A domestic refrigerator, a plurality of refrigerating compartmentstherein, means for cooling said compartments, said means including anexpansion coil located in one of said compartments and so arranged as toprovide a laterally open pocket, an ice cream freezer located in saidpocket, a motor for operating the coollng means and the lee creamfreezer, and means for disconnecting the ice cream freezer from themotor.

DELOS P. HEATH.

